37. f2d2  37... f8e8  38. d5d6 [%c_effect d6;square;d6;type;GreatFind;persistent;true][%c_arrow g5h7;keyPressed;none;from;g5;opacity;0.8;to;h7;persistent;false,g5e6;keyPressed;none;from;g5;opacity;0.8;to;e6;persistent;false] Preparing attacking ideas like placing a knight on e6 or even sacrificing it on h7 and then taking on g6. 38... e5e4  39. f3e4 